[  504.120670] bond0: (slave eth0): making interface the new active one
[  504.120743] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.318476] bond0: (slave eth0): Releasing backup interface
[  508.397959] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.544644] bond0: (slave eth0): Releasing backup interface
[  512.589615] bond0 (unregistering): Released all slaves